qemu

FORK: QEMU emulator
git clone https://git.neptards.moe/neptards/qemu.git
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      1 #!/usr/bin/env python3
      2 # group: rw quick
      3 #
      4 # Test resume mirror after auto pause on ENOSPC
      5 #
      6 # Copyright (c) 2019 Virtuozzo International GmbH. All rights reserved.
      7 #
      8 # This program is free software; you can redistribute it and/or modify
      9 # it under the terms of the GNU General Public License as published by
     10 # the Free Software Foundation; either version 2 of the License, or
     11 # (at your option) any later version.
     12 #
     13 # This program is distributed in the hope that it will be useful,
     14 # but WITHOUT ANY WARRANTY; without even the implied warranty of
     15 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     16 # GNU General Public License for more details.
     17 #
     18 # You should have received a copy of the GNU General Public License
     19 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
     20 #
     21 
     22 import iotests
     23 from iotests import qemu_img_create, qemu_io, file_path, filter_qmp_testfiles
     24 
     25 iotests.script_initialize(supported_fmts=['qcow2'])
     26 
     27 source, target = file_path('source', 'target')
     28 size = 5 * 1024 * 1024
     29 limit = 2 * 1024 * 1024
     30 
     31 qemu_img_create('-f', iotests.imgfmt, source, str(size))
     32 qemu_img_create('-f', iotests.imgfmt, target, str(size))
     33 qemu_io('-c', 'write 0 {}'.format(size), source)
     34 
     35 # raw format don't like empty files
     36 qemu_io('-c', 'write 0 {}'.format(size), target)
     37 
     38 vm = iotests.VM().add_drive(source)
     39 vm.launch()
     40 
     41 blockdev_opts = {
     42     'driver': iotests.imgfmt,
     43     'node-name': 'target',
     44     'file': {
     45         'driver': 'raw',
     46         'size': limit,
     47         'file': {
     48             'driver': 'file',
     49             'filename': target
     50         }
     51     }
     52 }
     53 vm.qmp_log('blockdev-add', filters=[filter_qmp_testfiles], **blockdev_opts)
     54 
     55 vm.qmp_log('blockdev-mirror', device='drive0', sync='full', target='target',
     56            on_target_error='enospc')
     57 
     58 vm.event_wait('JOB_STATUS_CHANGE', timeout=3.0,
     59               match={'data': {'status': 'paused'}})
     60 
     61 # drop other cached events, to not interfere with further wait for 'running'
     62 vm.get_qmp_events()
     63 
     64 del blockdev_opts['file']['size']
     65 vm.qmp_log('blockdev-reopen', filters=[filter_qmp_testfiles],
     66            options = [ blockdev_opts ])
     67 
     68 vm.qmp_log('block-job-resume', device='drive0')
     69 vm.event_wait('JOB_STATUS_CHANGE', timeout=1.0,
     70               match={'data': {'status': 'running'}})
     71 
     72 vm.shutdown()